Title:
AIR CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/181065
Kind Code:
A1
Abstract:
A control unit (19) that controls operation of a refrigerant circuit (10) performs pump-down operation for collecting a non-azeotropic refrigerant mixture in a part, of an outdoor unit (2), in the refrigerant circuit (10), performs composition ratio detection for obtaining the composition ratio of the non-azeotropic refrigerant mixture on the basis of pressure and temperature of the non-azeotropic refrigerant mixture collected in the outdoor unit (2) by the pump-down operation, and issues a warning in a case where the composition ratio of the non-azeotropic refrigerant mixture obtained by the composition ratio detection falls out of an allowable range of the composition of a fluorohydrocarbon having the property of causing a disproportionation reaction.
Inventors:
KUMAKURA EIJI
IWATA IKUHIRO
OKAMOTO TETSUYA
IWATA IKUHIRO
OKAMOTO TETSUYA
Application Number:
PCT/JP2018/011897
Publication Date:
October 04, 2018
Filing Date:
March 23, 2018
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
F25B13/00; F25B1/00; F25B49/02
Domestic Patent References:
| WO2015140874A1 | 2015-09-24 | |||
| WO2015140883A1 | 2015-09-24 | |||
| WO2015174054A1 | 2015-11-19 | |||
| WO2015114774A1 | 2015-08-06 | |||
| WO2012157764A1 | 2012-11-22 |
Foreign References:
| JP2002267232A | 2002-09-18 |
Other References:
See also references of EP 3604971A4
Attorney, Agent or Firm:
SHINJYU GLOBAL IP (JP)
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